Home / 151,781,107.76-209,457,884.52-82,166,437.04

Finding the Fourth Proportional to 151,781,107.76, 209,457,884.52 and 82,166,437.04

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Solution

The fourth proportional to 151,781,107.76, 209,457,884.52 and 82,166,437.04 is: 113,389,659.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,781,107.76 : 209,457,884.52 = 82,166,437.04 : x
  2. Step 2: Convert to fraction form
    151,781,107.76/209,457,884.52 = 82,166,437.04/x
  3. Step 3: Cross multiply
    151,781,107.76x = 209,457,884.52 × 82,166,437.04
  4. Step 4: Simplify right side
    151,781,107.76x = 17,210,408,080,944,172
  5. Step 5: Solve for x
    x = 17,210,408,080,944,172/151,781,107.76
  6. Step 6: Final answer
    x = 113,389,659.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.